styleTables.css

* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

header {
    height: 50px;
    background-color: lightgray;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

header img{
    width: 40px;
    border: 1px solid black;
    border-radius: 100%;
    background-color: white;
    margin-left: 5px;
}

header h1{
    color: white;
    text-shadow: 1px 1px black;
    font-family: 'Oleo Script Swash Caps', cursive;
    font-size: 3rem;
    padding-top: 5px;
    margin-left: 5px;
}
header a{
    text-decoration: none;
}

#btnlogout{
    margin-right: 5px;
    font-size: 1.25rem;
    color: black;
    text-decoration: none;
    border: 1px solid black;
    border-radius: 10px;
    background-color: #fff;
    padding: 5px;
    font-weight: bold;
}

#btnlogout:hover{
    box-shadow:  2px 2px 5px #838383,
                -2px -2px 5px #777676;
}

#resetLocalStorage{
    margin-left: 35%;
    width: 30%;
    background-color: red;
    color: white;
    font-weight: bold;
    border-radius: 10px;
    line-height: 30px;
    margin-top: 5px;
}

main{
    border: 1px solid black;
    width: 80%;
    height: 700px;
    display: grid;   
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(4, 1fr);
    align-items: center;
    grid-gap: 5%;
    text-align: center;
    line-height: 100px;
    font-size: 2rem;   
}

.table{
    max-width: 100px;
    max-height: 100px;
    min-height: 100px;
    background-image: url('./Images/tablelivre.png');
    background-size: contain;
}

.busy{
    background-image: url('./Images/tablebusy.png');
}

@media (max-width: 500px){
    main{
        grid-template-columns: repeat(3, 1fr);
    }
};